Medium severity · published Feb 19, 2021
CVE-2021-27351
The Terminate Session feature in the Telegram application through 7.2.1 for Android, and through 2.4.7 for Windows and UNIX, fails to invalidate a recently active session
5.3
CVSS
0.8%
EPSS
No
On KEV
Description
The Terminate Session feature in the Telegram application through 7.2.1 for Android, and through 2.4.7 for Windows and UNIX, fails to invalidate a recently active session.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
Low
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.8% · higher than 58% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
TE
Telegram · Telegram
through 2.4.7; through 2.4.7; through 7.2.1 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-27351
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-27351
Third Party Advisory
https://0ffsecninja.github.io/Telegram:CVE-2021-2735.html
Third Party Advisory
https://security.gentoo.org/glsa/202105-07
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